// Copyright (c) 2008-2010, Arne Claus
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are permitted provided that the 
// following conditions are met:
//
// - Redistributions of source code must retain the above copyright notice, this list of conditions and the following 
//   disclaimer.
// - Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following 
//   disclaimer in the documentation and/or other materials provided with the distribution.
// - Neither the name Arne Claus nor the names of any contributors may be used to endorse or promote products
//   derived from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, 
// INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE 
// USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#ifndef __INCLUDED_CRL_INDEX_BUFFER_DESCRIPTOR_H_
#define __INCLUDED_CRL_INDEX_BUFFER_DESCRIPTOR_H_

#include "CBL_Defines.h"
#include "CRL_Defines.h"

CB_SUBNAMESPACE_START(RenderLib)

class CIndexBufferDescriptor
{
public:
	
    #define ENUM_ITEM(_Name, _Size, _OpenGLFormat, _D3D9Format, _D3D10Format) Index##_Name,
	enum EIndexFormat
	{
		NotIndexed = 0,
		#include "CRL_IndexFormatsEnum.h"
		NumIndexFormats
	};
	#undef ENUM_ITEM
	
	static const char* s_IndexFormatNames[NumIndexFormats];
	
public:
    
	enum EStorageType
    {	
        ManagedStorage = 0,
        StaticStorage,
        DynamicStorage,
        NumStorageTypes
    };
    
public:
	
	RENDERLIB_API CIndexBufferDescriptor();
		
	void SetFormat(EIndexFormat _Format)	{ m_IndexFormat = _Format; }
	EIndexFormat GetFormat() const			{ return m_IndexFormat; }
	
	uint32 GetStride() const				{ return s_IndexFormatSizeByte[m_IndexFormat]; }

    void SetStorageType(EStorageType _Type) { m_StorageType = _Type; }
    EStorageType GetStorageType() const     { return m_StorageType; }
    
    void SetIndexCount(uint32 _Count)		{ m_IndexCount = _Count; }
    uint32 GetIndexCount() const			{ return m_IndexCount; }
    
    uint32 GetSizeByte() const				{ return m_IndexCount * s_IndexFormatSizeByte[m_IndexFormat]; }
    
	
private:
	
	static uint32	s_IndexFormatSizeByte[NumIndexFormats];
	EIndexFormat	m_IndexFormat;
    EStorageType	m_StorageType;
    uint32			m_IndexCount;
};

CB_SUBNAMESPACE_END

#endif